+———Adam DEL CROSLEGH (abt 1310 Scaitcliffe, Todmorden, Lancashire, England – )
                                                                                  |
                                                                              +———John DEL CROSLEGH (abt 1335 Scaitcliffe, Todmorden, Lancashire, England – )
                                                                              |   |    
                                                                              |   +———Matilda (abt 1310 – )
                                                                              |
                                                                          +———William DEL CROSLEGH (abt 1370 Scaitcliffe, Todmorden, Lancashire, England – )
                                                                          |   |    
                                                                          |   +———Johanna (abt 1340 – )
                                                                          |
                                                                      +———Thomas DEL CROSLEGH (abt 1400 Scaitcliffe, Todmorden, Lancashire, England – )
                                                                      |
                                                                  +———Richard DEL CROSLEGH (abt 1435 Scaitcliffe, Todmorden, Lancashire, England – )
                                                                  |
                                                              +———DEL CROSLEGH (abt 1470 Scaitcliffe, Todmorden, Lancashire, England – )
                                                              |
                                                          +———Richard CROSSLEY (abt 1500 Scaitcliffe, Todmorden, Lancashire, England – 1548 Scaitcliffe, Todmorden, Lancashire, England)
                                                          |
                                                      +———Richard CROSSLEY (abt 1530 Scaitcliffe, Todmorden, Lancashire, England – 1587 Scaitcliffe, Todmorden, Lancashire, England)
                                                      |   |    
                                                      |   +———Alice (abt 1510 – )
                                                      |
                                                  +———Anthony CROSSLEY (abt 1560 Scaitcliffe, Todmorden, Lancashire, England – 1624 Scaitcliffe, Todmorden, Lancashire, England)
                                                  |   |    
                                                  |   +———Elizabeth WHITLEY (abt 1540 – )
                                                  |
                                              +———John CROSSLEY (abt 1590 Scaitcliffe, Todmorden, Lancashire, England – 1646 Scaitcliffe, Todmorden, Lancashire, England)
                                              |   |    
                                              |   +———Mary (abt 1560 – )
                                              |
                                          +———John CROSSLEY (1616 Scaitcliffe, Todmorden, Lancashire, England – )
                                          |   |    
                                          |   +———Dorothie LORD (abt 1595 Godpleye, Walsden, Lancashire – )
                                          |
                                      +———Anthony CROSSLEY (1640 Scaitcliffe, Todmorden, Lancashire, England – 1707)
                                      |   |    
                                      |   +———Mary JACKSON (abt 1620 Worsthorne, Lancashire, England – )
                                      |
                                  +———Anthony CROSSLEY (abt 1668 Scaitcliffe, Todmorden, Lancashire, England – 1757)
                                  |   |    
                                  |   +———Anne EASTWOOD (abt 1645 Oldroyd, Todmorden, Lancashire, England – 1697 Todmorden, Lancashire, England)
                                  |
                              +———Anthony CROSSLEY (1714 Scaitcliffe, Todmorden, Lancashire, England – )
                              |   |    
                              |   +———Tamar PILLING (abt 1690 – )
                              |
                          +———William CROSSLEY (7 Apr 1745 Lisburn, Antrim, Northern Ireland – )
                          |   |    
                          |   +———BROWN (abt 1720 Rochdale, Lancashire, England – )
                          |
                      +———Arthur CROSSLEY (1776 – 7 Feb 1844 Elphin, Ireland)
                      |   |    
                      |   +———Margaret JOHNSON or Martha (abt 1745 – )
                      |
                  +———William CROSSLEY (22 Mar 1797 Londonderry, Northern Ireland – 11 Feb 1836 Londonderry, Northern Ireland)
                  |   |    
                  |   +———Catherine RATCLIFFE (abt 1776 Ireland – 29 May 1855 Strokestown, Roscommon, Ireland)
                  |
              +———William Donaldson CROSSLEY (27 Jun 1825 Crumlin, Antrim, Ireland – 20 Oct 1864 Belfast, Ireland)
              |   |    
              |   +———Mary Ann DONALDSON (abt 1798 Ireland – )
              |
          +———Arthur Charles CROSSLEY (3 Oct 1854 Lurgan, Galway, Ireland – 8 Jul 1893 Ballycastle, Antrim, Northern Ireland)
          |   |    
          |   +———Emily LLOYD (abt 1825 – )
          |
      +———William Guy CROSSLEY (20 Jun 1888 Belfast, Antrim, Northern Ireland – 28 Feb 1980 Cheshire, New Haven, Connecticut, USA)
      |   |    
      |   +———Isabel de Vere HOLE (1851 Magheralin, Down, Northern Ireland – 1907 Belfast, Ireland)
      |
  +———William Charles CROSSLEY Sr (6 May 1923 Ramsey Co, Minnesota, USA – 26 Aug 2000 Boston, Suffolk, Massachusetts, USA)
  |   |    
  |   +———Alice Ellen TIERNEY (abt 1884 MN – 27 May 1962 Ramsey Co, Minnesota, USA)
  |    
  William Charles CROSSLEY Jr (1950 Vermont, USA – )
  |    
  +———Eleanor Marie SHEA (1926 – )